Finding the Fourth Proportional to 10,085.30, 15,119.85 and 3,511.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,085.30 : 15,119.85 = 3,511.34 : x
2. Step 2: Convert to fraction form
   10,085.30/15,119.85 = 3,511.34/x
3. Step 3: Cross multiply
   10,085.30x = 15,119.85 × 3,511.34
4. Step 4: Simplify right side
   10,085.30x = 53,090,934.10
5. Step 5: Solve for x
   x = 53,090,934.10/10,085.30
6. Step 6: Final answer
   x = 5,264.19